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1. The appearance
is bright in color, the colloid surface is fine and smooth, and the colloid
material and the mandrel are firmly bonded. The size of the roller is strictly
controlled, and the size will not change greatly under different temperature
and humidity conditions. It can adapt to the high-temperature and high-humidity
environment of the printing workshop in the south and the severe cold and dry
climatic conditions in the north.
2.
Polyurethane coated roller has a wide range of hardness indicators, from HSA15
to HSD80, which can meet the hardness requirements of different types of
printing machines.
3. The
colloid for polyurethane rubber rollers has sufficient surface viscosity to
ensure that the rubber rollers have good ink transfer and inking performance
during the printing process, and its good ink affinity can ensure high-quality
printing.
4.
Polyurethane coated rollers have good chemical properties, especially good
solvent resistance to diesel, gasoline, lubricating oil, kerosene, alcohol and
saline solutions.
5.
Polyurethane rollers have excellent physical properties. The Polyurethane rollers
will not become hard or aging after long-term use, and they have good tear
resistance, resilience and excellent wear resistance, so they have long service
life, easy storage, and long-term storage. Affect the use effect; can withstand
high pressure, high speed, high humidity production environment. Experiments
show that the tensile strength and abrasion resistance of polyurethane rollers
are 3 times and 5 times that of natural rubber rubber rollers; the compression
permanent deformation and resilience are better; the service life of
polyurethane rubber rollers is more than 3 times that of general rubber
rollers.
6. Urethane
coated roller has excellent hydrophilicity, so it can be used as water and
alcohol dampening system.
7. The
polyurethane roller has high strength and high tear resistance, so it is
resistant to shearing and abrasion.